How does the Spirit witness to our acceptance with God?

Answer

"Because ye are sons, God hath sent forth the Spirit of His Son into your hearts, crying, Abba, Father."
Gal. 4 : 6. "The Spirit itself beareth witness with our spirit, that we are the children of God." Rom. 8: 16.

With whom did sin originate?
What was one direct purpose of the incarnation of Christ?
When man first transgressed, what was done to prevent him from living for ever in sin?
How freely was the Holy Spirit bestowed upon Him?
Whom does Christ say He came to call to repentance?
What shows that God imputed sin to Cain?
Why will many not be prepared for this event?

Questions & Answers are from the book Bible Readings for the Home Circle